diff --git a/doriswriter/doc/doriswriter.md b/doriswriter/doc/doriswriter.md
index 715afa8c..13600b5b 100644
--- a/doriswriter/doc/doriswriter.md
+++ b/doriswriter/doc/doriswriter.md
@@ -67,7 +67,8 @@ DorisWriter 插件实现了写入数据到 Doris 主库的目的表的功能。
                         "preSql": [],
                         "postSql": [], 
                         "jdbcUrl": "jdbc:mysql://172.28.17.100:9030/",
-                        "loadUrl": ["172.28.17.100:8030", "172.28.17.100:8030"]
+                        "loadUrl": ["172.28.17.100:8030", "172.28.17.100:8030"],
+                        "loadProps": {}
                     }
                 }
             }
@@ -156,6 +157,14 @@ DorisWriter 插件实现了写入数据到 Doris 主库的目的表的功能。
 
 	* 默认值：无 <br />
 
+* **loadProps**
+
+	* 描述：StreamLoad 的请求参数，详情参照StreamLoad介绍页面。 <br />
+
+ 	* 必选：否 <br />
+
+	* 默认值：无 <br />
+
 
 ### 3.3 类型转换
 
diff --git a/doriswriter/src/main/java/com/dorisdb/connector/datax/plugin/writer/doriswriter/manager/DorisWriterManager.java b/doriswriter/src/main/java/com/dorisdb/connector/datax/plugin/writer/doriswriter/manager/DorisWriterManager.java
index a5338ca9..da24448f 100644
--- a/doriswriter/src/main/java/com/dorisdb/connector/datax/plugin/writer/doriswriter/manager/DorisWriterManager.java
+++ b/doriswriter/src/main/java/com/dorisdb/connector/datax/plugin/writer/doriswriter/manager/DorisWriterManager.java
@@ -33,7 +33,7 @@ public class DorisWriterManager {
         try {
             buffer.add(record);
             batchCount++;
-            batchSize += record.length();
+            batchSize += record.getBytes().length;
             if (batchCount >= writerOptions.getBatchRows() || batchSize >= writerOptions.getBatchSize()) {
                 flush(createBatchLabel());
             }